隧洞衬砌全圆针梁台车抗浮结构设计  

Design of anti-uplift structure of full circle needle beam formwork trolley for tunnel lining

作　　者：张俊英[1] 

机构地区：[1]中铁十三局集团有限公司,天津300308

出　　处：《水利水电技术》2012年第12期48-51,共4页Water Resources and Hydropower Engineering

摘　　要：北京市南水北调配套工程南干渠七标浅埋暗挖隧洞为双线DN3 400 mm输水隧洞,其二次衬砌采用全圆式针梁台车施工。为应对台车在浇筑过程中通常会出现的上浮问题,在该台车设计之初便对抗浮进行了细致计算。实际衬砌浇筑证明,该台车抗浮装置可有效地防止其上浮,为以后类似工程积累相关经验。The shallow-buried and underground-excavated water conveyance tunnel of the bit section No. 7 of the South Main Ca- nal an auxiliary project in Beijing for the South Main Canal of the South-to-North Water Transfer Project is a double-route wa- ter conveyance tunnel with the nominal diameter（DN） of 3 400 mm, for which the secondary lining is constructed with a full circle needle beam formwork trolley. To deal with the problem from the uplift of the trolley usually occurred during concreting for the lining, a detailed calculation on the anti-uplift of the trolley is made from the very beginning of the design of it. The actual concre- ting for the lining demonstrates that the anti-uplift device of the trolley can effectively prevent the uplift of it during the construc- tion, and then accumulates some relevant experiences for the similar project in the days to come.

关 键 词：隧洞衬砌 全圆针梁台车 抗浮计算 南水北调配套工程 南干渠工程 北京市 

分 类 号：TV682.1[水利工程—水利水电工程]